Not Starting up

System was working fine, howerer cover was off and it got some rain in while it was on.just the sprays. the power supply was checked and found to be ok what is the most likely problem, now as ther is no power to the board,is it that the voltage regulators at the top could be faulty.

Thanks for your help. i already had the power supply check and will spend time taking a closer look at the motherboard.Thanks for your help. i already had the power supply check and will spend time taking a closer look at the motherboard.

Since your SUP is working OK....Your board might be fried because of the water that got in and shorted some parts....better send it to an electronic technician and let them check for damage/burned parts.

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Don't know this exact server. But my guess it is either a heat issue or a power supply issue. Turn it on with the cover off. Check the CPU fan(s). If your CPU is getting too hot the system might be shutting down power to save it. If everything seems cool it might be the power supply I have seen it when the power supply fan goes out on the power supply and the caps inside start to sizzle. Voltage ramps up and fail.Hope this helps.Also, Something that has tripped me in the past. Make sure the power button is not stuck. I had a server that the power button stuck down and it would turn itself off. Took me 2 CPU fans and a power supply to figure that out. LOL

Depending on what caused the power outage, you may need to replace the power supply in the server. When outage happen and the power is restore. a power surge can destroy power supplies, especially if not connected to an UPS unit.

this is the link to get a service manual in English. www.scribd.com/doc/103410/xserveIt includes detailed instructions, like use static electricity wrist bands.1. Shut down the computer. Remove the power cable.2. Unscrew the two finger screws on the front panel, remove the computer from it's case by pulling forward, and place it on a solid surface. Be careful. It's heavy and hard to handle. DON'T DROP IT.3. Unscrew the one finger screw holding the Power Supply in place. Lift the power supply out by the metal support near the 14 pin connector to the motherboard. There is a pin in the back panel of the computer, so the back end of the power supply rotates when the end closest to the front lifts.4. The 14 pin connector is has a lot of friction. I have never gotten it to come up easily, as it is supposed to. I usually use something to GENTLY lift up the metal cover/bracket over the 14 pin connector on the front end.5. If you are taking this out because you are replacing it, you should read what the manual says about checking the battery, resetting the PMU [AKA "zapping the PRAM"?], and checking for 12 volts of power from pin 1 to pin 8 on the 14 pin connector. 6. This isn't in the manual: To get at the 1 and 8 pins on the 14 pin connector,A. Removed the power supply, as described above. B. Removed the three screws that hold the metal cover/bracket over the 14 pin connector on the front end.C. Removed the cover/bracket to expose the tops of the 14 pins.

Hi,Does your server has single power supply or two power supplies.Remove the power supply and reinstalled and check.
Also you can install the power supply into second power supply bay and
check the status of LEDs. Before you power on close all the server
covers properly.

If above is not successfull remove the processors and reinstall properly and see if there is a difference.

You can download removal and replacement procedure by vising Support and Drivers in HP.com

Think of blinking amber as the initial state of the LED. As long as the system is receiving power from a power source and can pass that power through the system board to the LED on the Control Panel it should, at least, blink amber.
As a result, a blinking amber Power Button LED is a reliable indicator that the system is receiving power from a power source. This, in turn, tells us that the source and power cord are likely to be functional. The Blinking Amber LED also tells us that the power supply to system board connection is good as well as the connections between the system board, I/O Panel and Control Panel.
Depending on the components installed and the condition of those components, the LED may progress past blinking amber and move to solid amber.
If the LED does not progress past blinking amber it indicates that the system is not able to properly distribute power to the system components. This is discussed in the next section of the interaction.

It does not indicate that the power supply is bad. It simply indicates that, for whatever reason, one of the power supply 'rails' is not operating within its specified range or, simply, that there is a short somewhere in the system.
The LED state could be the result of a misconfigured or incorrectly installed system component. A bad drive, for example, may be shorting out one of the rails. Incorrectly installed memory can cause a blinking amber front panel power button LED.

Power edge system are having two power input check the cables from the power outlet may be one is in contact otherwise one of your power supply gone means not working. Check the wires first then the power supply units